Examine source code of Two_Moons

{
  "theme": {
    "images": {
      "theme_frame": "2moon_sopra.jpg"
    },
    "colors": {
      "frame": "#e6edc0",
      "tab_background_text": "#edeacc"
    }
  },
  "version": "2.0",
  "name": "Two_Moons",
  "manifest_version": 2,
  "description": "/"
}